/Engine/Source/Editor/UnrealEd/Public/Kismet2/KismetEditorUtilities.h
Upgrade any cosmetically stale information in a blueprint (done when edited instead of PostLoad to make certain operations easier)
True if blueprint modified, False otherwise
static void UpgradeCosmeticallyStaleBlueprint ( [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * Blueprint )